My Space Invaders Clone

Here's a blast from the past. Bear in mind that the code quality may be slightly dismal since I'd only learned some Java about a few hours before banging out the code. This was written almost 10 years ago and written for Java 1.0, since that was the only compiler available then. The indentation is a bit funky since the code was written in an editor that didn't convert tabs to spaces correctly.

It isn't meant to shoot all the time. Only one of your shots can be active at a time (it's in the instructions ). This is similar to the original space invaders game which also allowed only one shot to be active at a time.

Also, the enemy's shot is the same color as your shot and is dropped by one of the higher aliens, so it does pass through the others.